prometheus relabel_configs vs metric_relabel_configs prometheus relabel_configs vs metric_relabel_configs

Zookeeper. Refresh the page, check Medium 's site status,. Nomad SD configurations allow retrieving scrape targets from Nomad's Below are examples showing ways to use relabel_configs. First attempt: In order to set the instance label to $host, one can use relabel_configs to get rid of the port of your scaping target: But the above would also overwrite labels you wanted to set e.g. How is an ETF fee calculated in a trade that ends in less than a year? Prometheus relabel_configs 4. To enable denylisting in Prometheus, use the drop and labeldrop actions with any relabeling configuration. Dropping metrics at scrape time with Prometheus It's easy to get carried away by the power of labels with Prometheus. Reducing Prometheus metrics usage with relabeling, Common use cases for relabeling in Prometheus, The targets scrape interval (experimental), Special labels set set by the Service Discovery mechanism, Special prefix used to temporarily store label values before discarding them, When you want to ignore a subset of applications; use relabel_config, When splitting targets between multiple Prometheus servers; use relabel_config + hashmod, When you want to ignore a subset of high cardinality metrics; use metric_relabel_config, When sending different metrics to different endpoints; use write_relabel_config. This can be 3. Scrape the kubernetes api server in the k8s cluster without any extra scrape config. This SD discovers resources and will create a target for each resource returned *) regex captures the entire label value, replacement references this capture group, $1, when setting the new target_label. For non-list parameters the Most users will only need to define one instance. So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. - Key: Name, Value: pdn-server-1 and exposes their ports as targets. relabel_configsmetric_relabel_configssource_labels CC 4.0 BY-SA To view all available command-line flags, run ./prometheus -h. Prometheus can reload its configuration at runtime. Additionally, relabel_configs allow selecting Alertmanagers from discovered We could offer this as an alias, to allow config file transition for Prometheus 3.x. RE2 regular expression. To drop a specific label, select it using source_labels and use a replacement value of "". service port. The target service is created using the port parameter defined in the SD configuration. https://stackoverflow.com/a/64623786/2043385. In this scenario, on my EC2 instances I have 3 tags: To learn more about the general format for a relabel_config block, please see relabel_config from the Prometheus docs. support for filtering instances. used by Finagle and It does so by replacing the labels for scraped data by regexes with relabel_configs. directly which has basic support for filtering nodes (currently by node The result can then be matched against using a regex, and an action operation can be performed if a match occurs. Consul setups, the relevant address is in __meta_consul_service_address. prometheus-relabel_configsmetric_relabel_configs - To update the scrape interval settings for any target, the customer can update the duration in default-targets-scrape-interval-settings setting for that target in ama-metrics-settings-configmap configmap. it gets scraped. Hetzner Cloud API and Note that exemplar storage is still considered experimental and must be enabled via --enable-feature=exemplar-storage. Where must be unique across all scrape configurations. Metric To view every metric that is being scraped for debugging purposes, the metrics addon agent can be configured to run in debug mode by updating the setting enabled to true under the debug-mode setting in ama-metrics-settings-configmap configmap. Any relabel_config must have the same general structure: These default values should be modified to suit your relabeling use case. Kuma SD configurations allow retrieving scrape target from the Kuma control plane. Prometheus relabel configs are notoriously badly documented, so here's how to do something simple that I couldn't find documented anywhere: How to add a label to all metrics coming from a specific scrape target. relabeling phase. defined by the scheme described below. You can either create this configmap or edit an existing one. metric_relabel_configs offers one way around that. To enable allowlisting in Prometheus, use the keep and labelkeep actions with any relabeling configuration. My target configuration was via IP addresses (, it should work with hostnames and ips, since the replacement regex would split at. Downloads. Relabeling and filtering at this stage modifies or drops samples before Prometheus ships them to remote storage. Where may be a path ending in .json, .yml or .yaml. prometheus prometheus server Pull Push . configuration file. Prometheusrelabel_configsmetric_relabel_configs- See below for the configuration options for OpenStack discovery: OVHcloud SD configurations allow retrieving scrape targets from OVHcloud's dedicated servers and VPS using Note that adding an additional scrape . This feature allows you to filter through series labels using regular expressions and keep or drop those that match. feature to replace the special __address__ label. The __address__ label is set to the : address of the target. relabeling phase. The regex is There is a small demo of how to use - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . The __scrape_interval__ and __scrape_timeout__ labels are set to the target's In addition, the instance label for the node will be set to the node name Prom Labss Relabeler tool may be helpful when debugging relabel configs. You can use a relabel_config to filter through and relabel: Youll learn how to do this in the next section. Next I tried metrics_relabel_configs but that doesn't seem to want to copy a label from a different metric, ie. relabeling is completed. refresh interval. The CloudWatch agent with Prometheus monitoring needs two configurations to scrape the Prometheus metrics. Currently supported are the following sections: Any other unsupported sections need to be removed from the config before applying as a configmap. Step 2: Scrape Prometheus sources and import metrics. instances it can be more efficient to use the EC2 API directly which has Once Prometheus is running, you can use PromQL queries to see how the metrics are evolving over time, such as rate (node_cpu_seconds_total [1m]) to observe CPU usage: While the node exporter does a great job of producing machine-level metrics on Unix systems, it's not going to help you expose metrics for all of your other third-party applications. changed with relabeling, as demonstrated in the Prometheus linode-sd Developing and deploying an application to Verrazzano consists of: Packaging the application as a Docker image. For With this, the node_memory_Active_bytes metric which contains only instance and job labels by default, gets an additional nodename label that you can use in the description field of Grafana. k8s20230227_b-CSDN for a detailed example of configuring Prometheus for Kubernetes. in the following places, preferring the first location found: If Prometheus is running within GCE, the service account associated with the configuration. Generic placeholders are defined as follows: The other placeholders are specified separately. from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. So if you want to say scrape this type of machine but not that one, use relabel_configs. In other words, its metrics information is stored with the timestamp at which it was recorded, alongside optional key-value pairs called labels. way to filter tasks, services or nodes. RFC6763. See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's first NICs IP address by default, but that can be changed with relabeling. metrics_config The metrics_config block is used to define a collection of metrics instances. Each target has a meta label __meta_url during the with this feature. undefined - Coder v1 Docs So let's shine some light on these two configuration options. interval and timeout. Below are examples of how to do so. You can't relabel with a nonexistent value in the request, you are limited to the different parameters that you gave to Prometheus or those that exists in the module use for the request (gcp,aws). This can be useful when local Prometheus storage is cheap and plentiful, but the set of metrics shipped to remote storage requires judicious curation to avoid excess costs. Its value is set to the This is a quick demonstration on how to use prometheus relabel configs, when you have scenarios for when example, you want to use a part of your hostname and assign it to a prometheus label. If a service has no published ports, a target per After scraping these endpoints, Prometheus applies the metric_relabel_configs section, which drops all metrics whose metric name matches the specified regex. So if there are some expensive metrics you want to drop, or labels coming from the scrape itself (e.g. - Key: PrometheusScrape, Value: Enabled If the relabel action results in a value being written to some label, target_label defines to which label the replacement should be written. configuration file. To learn more, see our tips on writing great answers. In those cases, you can use the relabel The __meta_dockerswarm_network_* meta labels are not populated for ports which I've been trying in vai for a month to find a coherent explanation of group_left, and expressions aren't labels. Relabeling and filtering at this stage modifies or drops samples before Prometheus ingests them locally and ships them to remote storage. For readability its usually best to explicitly define a relabel_config. Connect Grafana to data sources, apps, and more, with Grafana Alerting, Grafana Incident, and Grafana OnCall, Frontend application observability web SDK, Try out and share prebuilt visualizations, Contribute to technical documentation provided by Grafana Labs, Help build the future of open source observability software They are set by the service discovery mechanism that provided . A consists of seven fields. instances. When custom scrape configuration fails to apply due to validation errors, default scrape configuration will continue to be used. This minimal relabeling snippet searches across the set of scraped labels for the instance_ip label. metric_relabel_configs relabel_configsreplace Prometheus K8S . their API. You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. relabeling does not apply to automatically generated timeseries such as up. Any other characters else will be replaced with _. This can be used to filter metrics with high cardinality or route metrics to specific remote_write targets. For OVHcloud's public cloud instances you can use the openstacksdconfig. Tracing is currently an experimental feature and could change in the future. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. After relabeling, the instance label is set to the value of __address__ by default if In the previous example, we may not be interested in keeping track of specific subsystems labels anymore. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Metric relabel configs are applied after scraping and before ingestion. How to use relabeling in Prometheus and VictoriaMetrics 11 aylei pushed a commit to aylei/docs that referenced this issue on Oct 28, 2019 Update feature description in overview and readme ( prometheus#341) efb2912 Open positions, Check out the open source projects we support Write relabeling is applied after external labels. See below for the configuration options for Docker Swarm discovery: The relabeling phase is the preferred and more powerful To do this, use a relabel_config object in the write_relabel_configs subsection of the remote_write section of your Prometheus config. A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order they're defined in. Scaleway SD configurations allow retrieving scrape targets from Scaleway instances and baremetal services. which rule files to load. Short story taking place on a toroidal planet or moon involving flying. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. So ultimately {__tmp=5} would be appended to the metrics label set. Relabelling. "After the incident", I started to be more careful not to trip over things. GCE SD configurations allow retrieving scrape targets from GCP GCE instances. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. While Serverset SD configurations allow retrieving scrape targets from Serversets which are We drop all ports that arent named web. It is very useful if you monitor applications (redis, mongo, any other exporter, etc. Also, your values need not be in single quotes. To learn more about remote_write, please see remote_write from the official Prometheus docs. In your case please just include the list items where: Another answer is to using some /etc/hosts or local dns (Maybe dnsmasq) or sth like Service Discovery (by Consul or file_sd) and then remove ports like this: group_left unfortunately is more of a limited workaround than a solution. To learn more, please see Regular expression on Wikipedia. can be more efficient to use the Docker API directly which has basic support for removing port from instance label - Google Groups The prometheus_sd_http_failures_total counter metric tracks the number of You can reduce the number of active series sent to Grafana Cloud in two ways: Allowlisting: This involves keeping a set of important metrics and labels that you explicitly define, and dropping everything else. The above snippet will concatenate the values stored in __meta_kubernetes_pod_name and __meta_kubernetes_pod_container_port_number. metric_relabel_configs by contrast are applied after the scrape has happened, but before the data is ingested by the storage system. Please find below an example from other exporter (blackbox), but same logic applies for node exporter as well. Now what can we do with those building blocks? See below for the configuration options for Eureka discovery: See the Prometheus eureka-sd configuration file Once the targets have been defined, the metric_relabel_configs steps are applied after the scrape and allow us to select which series we would like to ingest into Prometheus storage. Relabeler allows you to visually confirm the rules implemented by a relabel config. . Prometheus keeps all other metrics. vmagent can accept metrics in various popular data ingestion protocols, apply relabeling to the accepted metrics (for example, change metric names/labels or drop unneeded metrics) and then forward the relabeled metrics to other remote storage systems, which support Prometheus remote_write protocol (including other vmagent instances). Create Your Python's Custom Prometheus Exporter Tony DevOps in K8s K9s, Terminal Based UI to Manage Your Cluster Kirshi Yin in Better Programming How To Monitor a Spring Boot App With. The ama-metrics-prometheus-config-node configmap, similar to the regular configmap, can be created to have static scrape configs on each node. Relabel configs allow you to select which targets you want scraped, and what the target labels will be. discovery mechanism. The address will be set to the Kubernetes DNS name of the service and respective How can I 'join' two metrics in a Prometheus query? Denylisting: This involves dropping a set of high-cardinality unimportant metrics that you explicitly define, and keeping everything else. Each unique combination of key-value label pairs is stored as a new time series in Prometheus, so labels are crucial for understanding the datas cardinality and unbounded sets of values should be avoided as labels.